www.gusucode.com > signal 工具箱matlab源码程序 > signal/@dfilt/@dtfiir/coefficientnames.m
function c = coefficientnames(Hd) %COEFFICIENTNAMES Coefficient names. % COEFFICIENTNAMES(Hd) returns a cell array of the names of the % coefficients for this filter structure. % % Example: % Hd = dfilt.df2t; % c = coefficientnames(Hd) % % See also DFILT. % Author: Thomas A. Bryan % Copyright 1988-2002 The MathWorks, Inc. % The singleton filters have extra no-op input parameters so you % don't have to distinguish the calling syntax between singleton and % multisection filters for this function. c = {'Numerator', 'Denominator'};